Club rates redesigned so they are easy to understand (9)

I believe the answer is:

scrutable

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'they are easy to understand' is the definition.
The definition suggests an adverb but the answer is not.

'club rates redesigned' is the wordplay.
'redesigned' indicates an anagram.
'club'+'rates'='clubrates'
'clubrates' with letters rearranged gives 'SCRUTABLE'.

'so' acts as a link.

Can you help me to learn more?

(Another definition for scrutable that I've seen is " Open to view".)

I've seen this clue in The Guardian.

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